Anti-theft hook
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional wire hook displays are vulnerable to theft as items can be easily swept or removed, lacking effective deterrents against theft in retail environments.
Innovation Solution
An anti-sweeping hook with a helical coil and rotating handle that monitors and counts merchandise removals, triggering an alarm if a threshold number of items are removed within a predetermined time, incorporating a rotor and stator mechanism to facilitate or prevent electrical connections for loading and unloading merchandise.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a conventional wire hook display is used, then items can be easily loaded and displayed, but items can be easily swept or removed in a simple sliding motion enabling theft
Solution Approach 1:
The display hook system transitions from a static conventional wire hook to a dynamic helical coil mechanism that rotates to load and unload items. The helical coil must rotate in a specific direction controlled by the ratchet mechanism, making random sweeping motions ineffective and preventing theft while maintaining operational capability.
Solution Approach 2:
A ratchet mechanism is introduced as an intermediary between the rotating handle and the helical coil. This intermediary component allows rotation in only one direction, mediating the interaction between the user's manual rotation and the coil's movement, thereby preventing unauthorized or rapid removal of items.
2Reliability
If a helical coil with rotating handle is used, then theft is deterred through controlled rotation, but device complexity increases due to rotor and stator mechanism
Solution Approach 1:
The ratchet mechanism is a self-regulating mechanical component that automatically prevents rotation in the wrong direction without requiring external control systems, sensors, or power sources. The mechanism self-enforces the unidirectional rotation constraint through its inherent mechanical design, reducing overall system complexity.
Solution Approach 2:
The patent replaces complex electronic monitoring and control systems with a simple mechanical ratchet mechanism. Instead of using sensors, microcontrollers, or motors to control item removal, a passive mechanical component achieves the same security function through pure mechanical means, simplifying the overall device.
3Difficulty of detecting and measuring
If electrical contacts are added to monitor rotation, then theft detection capability is improved, but manufacturing complexity increases
Solution Approach 1:
The monitoring function is extracted as a separate, simple electrical contact mechanism rather than being integrated into the mechanical structure. The first and second contacts are discrete components that simply detect rotational position through basic electrical connectivity, separating the detection function from the mechanical operation and simplifying manufacturing.
Solution Approach 2:
The electrical contact system uses simple conductive elements that replicate the rotational position information without requiring complex sensors or processing. The contacts create basic electrical signals that copy the mechanical rotation state, enabling theft detection through simple electrical rather than complex electronic means.
Data Source
Figure 1
Figure 2
Figure 3
AI summary
An anti-sweeping hook (100) that includes a display hook (104) for storing retail merchandise. The display hook (104) is substantially straight and having a first end and a second end opposite the first end. A helical coil (108) is disposed about the display hook (104) and extending along a lengthwise portion of the display hook. The helical coil (108) has a first coil end proximate the first end of the display hook. Rotation of the helical coil in a first direction loads the retail merchandise onto the display hook. Rotation of the helical coil in a second direction opposite the first direction removes the retail merchandise from the display hook. A rotating handle is attached to the first end of the display hook and to the first coil end. The rotating handle is configured to determine an extent of rotation for the rotating handle.